The idea for this severe, slab-like object developed while Giles Bettison was working in New York. It shows the influence of urban structures, window patterns of derelict buildings and the industrial landscape on his organisation of its murrini glass structure. To achieve this, clear and coloured glass canes are fused together, then cut into pointillist blocks to be assembled and fused into a pattern, each process contributing to an organic and irreducible whole. The orchestration of the opaque and transparent sections of Grid #13 invites the viewer to move around the work to activate its encapsulated optical and refractive dynamics, just as one’s vision might strain to peer into a distant, modernist, curtain-walled high rise building or, on a smaller scale, into a core sample or a crystal specimen.